diff --git a/README.md b/README.md
index cc55373..678913c 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ $ npm install simplycountdown.js
             inlineClass: 'simply-countdown-inline', //inline css span class in case of inline = true
             // in case of inline set to false
             enableUtc: true, //Use UTC as default
-            onEnd: function() { return; } //Callback on countdown end, put your own function here
+            onEnd: function() { return; }, //Callback on countdown end, put your own function here
             refresh: 1000, // default refresh every 1s
             sectionClass: 'simply-section', //section css class
             amountClass: 'simply-amount', // amount css class